Free PNG to WebP Converter — Reduce Image Size Online
Convert PNG images to WebP format for smaller file sizes and faster loading. Free, private, browser-based converter with adjustable quality.
Drag & drop or click to upload a PNG image
Supports .png files
Input Preview
Output Preview
All conversion happens locally in your browser. Your files are never uploaded.
Smaller Files, Same Quality
WebP compresses images 25-50% more efficiently than PNG. Speed up your website, save storage, and cut bandwidth costs — all while keeping transparency and sharp detail.
Key Features
Superior Compression
WebP produces files 25-50% smaller than PNG with minimal quality loss.
Transparency Preserved
WebP supports full alpha transparency — your transparent PNGs stay transparent.
Lossy & Lossless Modes
Choose lossy for maximum compression or lossless for pixel-perfect quality.
Faster Page Load
Smaller images mean faster websites, better Core Web Vitals, and improved SEO.
Common Use Cases
Web Performance
Convert site images to WebP for faster loading and better SEO
Storage Savings
Reduce cloud storage costs with smaller image files
App Development
Use WebP for mobile apps to reduce bundle size and data usage
How this Free PNG to WebP Converter — Reduce Image Size Online works
This image optimization converter transforms PNG files into Google's WebP format, achieving significantly smaller file sizes while maintaining visual quality through advanced compression. The tool supports both lossy and lossless compression modes—lossy mode offers dramatic size reductions with adjustable quality (10-100%), while lossless mode preserves every pixel perfectly with moderate compression. Users upload PNG images via drag-and-drop, toggle between compression modes, adjust quality settings, and preview input/output images side-by-side with real-time file size comparison showing exact savings percentages. The converter uses the Canvas API to render PNG data and export as WebP using toDataURL('image/webp', quality), handling transparency channels correctly throughout the process. Common applications include optimizing website images for faster page loads, reducing bandwidth costs for image-heavy applications, preparing high-quality assets for modern browsers supporting WebP, or converting screenshot collections for efficient cloud storage.
How to Use
Upload PNG image
Drag and drop or click to select a PNG file from your device.
Set quality
Choose between lossy or lossless compression and adjust the quality level.
Convert & download
Click Convert to process your image, then download the smaller WebP file.
Example Usage
A PNG screenshot converted to WebP with 72% file size reduction while maintaining visual quality.
Frequently Asked Questions
What is WebP format?
Will I lose transparency?
How much smaller will my files be?
Which browsers support WebP?
Is this converter safe?
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The PNG to WebP Converter is maintained by CodeItBro. We aim to provide the best free developer tools on the web. If you have feedback or suggestions, please visit our contact page.
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